Bykov Dmitriy

From Saint Petersburg, Russia

EMA: 15990236

Player page

Common russian riichi rating (CRR)

Rating date Jan. 5, 2025 (latest changes Jan. 5, 2025).

179 place (163.31).

max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85

p1 = (299.07 * 4 * 0.57 + 578.95 * 1.50 * 1 + 0 + 0 + 0) / (4 * 0.57 + 1.50 * 1 + 1 + 1 + 1) = 228.7137467578401

p2 = (578.95 * 1.50 * 1 + 299.07 * 4 * 0.57) / max_coefficients = 97.91545741324921

score = 228.7137467578401 * 0.5 + 97.91545741324921 * 0.5 = 163.31460208554466

Rating changes

Show

all results
Date Place Points Reason
2025-01-04 174 -> 179 163.31
2025-01-03 172 -> 174 171.44 -> 163.31

SPB Riichi Open 2023: 71% -> 57%
2025-01-01 173 -> 172 171.44
2024-12-29 172 -> 173 171.44
2024-12-26 173 -> 172 171.44
2024-12-22 174 -> 173 171.44
2024-12-11 173 -> 174 171.44
2024-12-01 172 -> 173 171.44
2024-11-14 173 -> 172 171.44
2024-11-05 176 -> 173 171.44

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 579 2024-05-25 9/20 100% 1.50 CRR Duplicate riichi mahjong tournament 2024
2 299 2023-09-03 76/108 57% 4.00 RR SPB Riichi Open 2023
3 747 2021-11-28 20/76 0% 3.45 RR Saint Petersburg Open 2021
4 635 2019-11-24 24/64 0% 3.45 EMA Saint Petersburg Open 2019
5 692 2018-12-23 13/40 0% 2.90 RR North Cup 2018
6 873 2018-06-11 10/72 0% 3.55 EMA RCR Saint Petersburg South Cup 2018
7 742 2018-03-04 9/32 0% 2.70 RR East Cup 2018
8 506 2017-12-11 42/84 0% 3.40 EMA VI Russian Riichi Championship 2017
9 103 2017-10-01 36/40 0% 1.80 RR Saint Petersburg championship. Northern cup 2017
10 282 2017-06-03 29/40 0% 1.80 RR Saint Petersburg championship. West cup 2017
11 860 2017-03-18 7/44 0% 1.90 RR Saint Petersburg championship. South cup 2017
12 183 2016-12-04 59/72 0% 3.25 EMA Saint Petersburg Riichi Open 2016
13 0 2016-10-16 32/32 0% 1.60 RR Tournament of 4 winds. West cup 2016
14 770 2016-09-11 21/88 0% 3.45 EMA V Russian Riichi Championship 2016
15 1000 2016-07-03 1/24 0% 1.40 RR Tournament of 4 winds. South cup 2016
16 596 2016-03-13 41/100 0% 3.40 RR "Japanese House" riichi mahjong cup 2016
17 282 2016-02-22 29/40 0% 2.60 EMA Ivanovo Region Riichi Championship 2016
18 158 2015-11-15 17/20 0% 1.30 RR Tournament of Saint Petersburg riichi mahjong league
19 451 2015-10-18 29/52 0% 2.90 EMA Russian Open Riichi Championship 2015
20 886 2015-08-22 5/36 0% 1.70 EMA Nizhny Novgorod Riichi Championship 2015
21 684 2015-03-15 7/20 0% 2.10 RR Nizhny Novgorod riichi mahjong tournament